On Mon, Nov 24, 2014 at 01:09:54AM +, Al Viro wrote:
> Specifically, it allows to add a new kind of iovecs (ITER_KVEC using
> straight memcpy instead of going through copy_..._user) at the cost of
> mere 74 extra lines (see the next patch) and allows to add the things
> like csum_and_copy_{from
iov_iter.c has already grown pretty large, and there is a couple of pending
changes to it that promise to make it even bigger. On the other hand, there's
a lot of duplicated logics in there. Generally, we'd want something like
iterate(iter, size, f_iovec, f_bvec, data, move) that would apply the
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